package com.iplay.headfirst.chapter1;

/**
 * @author dangwu
 * @since 2021/3/10 6:37 下午
 */
public class DuckTest {
    public static void main(String[] args) {
        MallardDuck mallardDuck= new MallardDuck();
        mallardDuck.performQuack();
        mallardDuck.performFly();
    }
}
